Vaccines may not be as effective for those who are immuno-compromised. Protecting them needs to be made a top priority, says researchers — to keep them safe and to slow the emergence of variants.
The hope was that if people weren't out drinking, they wouldn't be spreading the coronavirus. There were unforeseen benefits to the ban, which ended last month — and negative impacts as well.
For low- and middle-income countries, just obtaining doses has been a challenge. And now concerns are being raised about the effectiveness of the more affordable AstraZeneca option.
A study raised concerns about its effectiveness against the coronavirus variant sweeping through the country — although the data is too preliminary for definitive conclusions.
African TV execs say it's unlike any show for kids that's been produced and broadcast on the continent — especially with its focus on women presenters and scientists.
In a new round of tests, the drug company wants to see if booster doses of its vaccine will ramp up defenses against emerging strains of the coronavirus.
The variant in Brazil is causing a surge in Manaus, a city where the virus previously infected huge numbers in the spring of 2020. Researchers are trying to determine why.